I WILL MARK BRAINLIEST Predict: As the block slides down the ramp, how do you expect the gravitational potential energy and energy of the block to change?

gravitational potential energy doesnt change srry the other one as in explaining it

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

i'm assuming that the correct answer is indeed the first one/ "a"..